What is Specification and what platforms does it support?

Specification is catalogued under Testing & Code Quality: What a good website does.. Supported platforms: MCP Server.

Is Specification open source?

Specification has a public repository (https://github.com/jdevalk/specification.website) with its source repository published, recording 33 GitHub stars.

Products

Specification

MCP

What a good website does.

specification.website Source★ 33Software Development / Testing & Code Quality

AI Benchmark

Desktop

Mobile

Monthly visits: None yet; No traffic data yet
Public revenue: Undisclosed; No public revenue evidence yet
Entry price: Free; No monthly subscription pricing
Creators: Joost de Valk; No social account linked
Launched: 6mo ago; 2026-06-01 · Est.

Traffic

Last 12 months

Monthly visits

No traffic data yet.

Events1 marketing move

Marketing moves

Launches, search & content, referrals, promotions

X accounts@jdevalk

"we're learning that there's web standards that actually improve how our stuff works” Maybe have a scroll through https://specification.website/ 引用帖 @claudedevs： We keep improving performance across Claude, and you may have noticed it sta
@jdevalk · 2026-10-16 · 495 likes · 9 reposts · 43.8K views
This. And among what we need to ask for is funding for our most important open source pillars. Look up how much funding the PHP Foundation gets, and then look at the absolute chaos we had yesterday because of a big security issue in it. The
@jdevalk · 2026-10-22 · 14 likes · 2 reposts · 1,307 views
The machine doing the matching changes every few years. The work doesn’t. Pick the words your audience actually uses. That’s been the first rule of SEO since day one. It still applies to conference names. 回复原帖 @jdevalk： “But AI search is d
@jdevalk · 2026-10-20 · 2 likes · 0 reposts · 265 views

Launched on Product HuntLaunch
What a good website does, regardless of your stack
Jun 1 · 6mo agoLaunch page

Open Source & Agent Ecosystem

GitHub · MCP / Skill

jdevalk/specification.website

Last commit 2026-11-02

GitHub Stars: ★ 33
Forks: 2
License: See repository
Primary language: —

Browse peer open-source projects →

Agent, MCP & Developer Integration

MCP Server

Integration docs

Exposed tool capabilities:: Accessibility Testing SEO Validation Audit your site Learn what’s missing Fix it, then re-check Query the whole spec

Browse all MCP Server products →

Traffic sources

Traffic breakdown

No traffic channel or country breakdown data for this website yet.

View similar products ↓

Search

Domain authority —Domain registered Unknown

No search keyword data for this website yet.

Traffic data: Vaneform

Pricing

Pricing page not identified yet, or no public pricing listed.

Pages & changes

Tracked since 2026-06-01

Key pages

Weekly snapshots

Homespecification.website/
Featuresspecification.website/mcp/ Snapshot 2026-11-09

Changes

No pricing, plan, or positioning changes detected since tracking started.

Questions & evidence

What is Specification and what platforms does it support?: Specification is catalogued under Testing & Code Quality: What a good website does.. Supported platforms: MCP Server.
Is Specification open source?: Specification has a public repository (https://github.com/jdevalk/specification.website) with its source repository published, recording 33 GitHub stars.Source

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